CN105171351A - Machining process for oil-gas transport pump - Google Patents
Machining process for oil-gas transport pump Download PDFInfo
- Publication number
- CN105171351A CN105171351A CN201510607368.9A CN201510607368A CN105171351A CN 105171351 A CN105171351 A CN 105171351A CN 201510607368 A CN201510607368 A CN 201510607368A CN 105171351 A CN105171351 A CN 105171351A
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- Prior art keywords
- oil
- ring flange
- lining
- screw rod
- locating piece
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- 238000003754 machining Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 43
- 229910001339 C alloy Inorganic materials 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000005496 tempering Methods 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims description 38
- 239000003921 oil Substances 0.000 claims description 21
- 238000010791 quenching Methods 0.000 claims description 21
- 230000000171 quenching effect Effects 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 15
- 239000003607 modifier Substances 0.000 claims description 9
- 238000010583 slow cooling Methods 0.000 claims description 9
- 238000005255 carburizing Methods 0.000 claims description 8
- -1 imidazoline oleate class Chemical class 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 239000002199 base oil Substances 0.000 claims description 7
- 239000002283 diesel fuel Substances 0.000 claims description 6
- 229910009043 WC-Co Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 229920002367 Polyisobutene Polymers 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 3
- 230000012447 hatching Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011365 complex material Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/10—Manufacture by removing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a machining process for an oil-gas transport pump. The process includes the steps that firstly, medium-carbon alloy steel is adopted to be blanked and hardening and tempering treatment is performed; secondly, rough machining and semi-finish machining are performed; thirdly, a screw is corrected and balanced; fourthly, the working surface of the screw is hardened and thermally treated, so that the hardness of the working surface reaches over HRC60 so as to meet the requirements for operation wear and corrosion; and fifthly, the working surface of the screw is precisely ground, so that the size and the position accuracy meet the requirements for drawing design. The process further includes a bush machining step and the like. The machining process of the screw and a bush which are key components of the oil-gas transport pump of a screw conveying structure is improved. The working surface of the screw is hardened, so that the requirements for operation wear and corrosion are met. A fractional thermal treatment process is adopted for the bush, remaining strain in the machining and manufacturing process is gradually eliminated, the inner structure of the bush is improved, and the hardness and the corrosion resistance of the surface of the bush are improved. An equipment replacement period is remarkably prolonged and the service life of equipment is prolonged.
Description
Technical field
The invention belongs to conveying equipment for fluid substances field, be specifically related to the processing technology of oil-gas mixed delivery pump.
Background technology
China is the relatively poor countries of petroleum resources, so petroleum resources are of great rarity.And in China oil field, have the situation much belonging to oil gas association.Oil-gas mixed delivery pump is exactly to one of key equipment that oil gas accompanying mineral deposit is developed; Be mainly used in increasing and conveying oil field shaft mouth gas mixture out.
Existing oil-gas mixed delivery pump is all adopt screw rod, bush structure usually.Oil-gas mixed delivery pump operating condition is severe, has the complex materials such as crude oil, gas, sand grains in pumped (conveying) medium, and containing multiple corrosive elements in crude oil.This just requires that oil-gas mixed delivery pump possesses good wearability, corrosion resistance.Screw rod, lining wearability, the corrosion-resistant of the oil-gas mixed delivery pump of production wellhead use at home at present.Cause the pump housing short for service life, need to change continually.This not only adds cost, and hamper production run.
Summary of the invention
The object of this invention is to provide a kind of processing technology of oil-gas mixed delivery pump, this technique can significantly improve the service life of oil-gas mixed delivery pump.
For achieving the above object, the technical solution adopted in the present invention is: a kind of processing technology of oil-gas mixed delivery pump, comprises the step of processing screw and bushing, it is characterized in that:
Screw rod procedure of processing comprises:
1). adopt medium carbon alloy steel blanking, first carry out modifier treatment, to improve the overall mechanical properties of screw rod;
2). on lathe, carry out roughing and semifinishing;
3). screw rod carries out correcting and Balance Treatment;
4). screw rod working surface carries out hardening heat process;
5). screw rod working surface carries out fine grinding processing, makes size and positional precision all reach Design Requirement Drawing.
Lining procedure of processing comprises:
1). lining adopts low-carbon alloy steel, carries out roughing after forging molding;
2). then carry out modifier treatment, to improve the overall mechanical properties of lining;
3). on lathe, carry out semifinishing after modified;
4). the laggard row gas carburizing of semifinishing, quenching, temper;
5). lining working surface carries out fine grinding processing, and size and positional precision all reach Design Requirement Drawing.
Preferably, described screw rod working surface hardening heat process is that screw rod outer round surface is carried out plasma spray process; Plasma spray treatment step comprises: screw rod is preheated to 280 ~ 350 DEG C, then sprays WC-Co powder, remelting; Remelting temperature controls between solidus and liquidus curve; Then slow cooling process is carried out.Preheating makes screw surface moisture evaporation, produces suitable thermal expansion to reduce layer stress, improves the deposition efficiency that dusts.Remelting temperature controls, between solidus and liquidus curve, to reach particles fuse, eliminates particulate interspaces, soaks and the optimum efficiency of oxide slag making with matrix, keeps certain viscosity to prevent trickling simultaneously.
Preferably, described screw rod is preheated to 300 DEG C.
Preferably, described slow cooling is treated to employing quenching oil, by front 3h cooling per hour 100 DEG C, then cooling per hour 50 DEG C, after temperature arrives 300 DEG C, and the speed cooling of cooling per hour 7 ~ 15 DEG C; Temperature is reduced to 150 DEG C with bottom discharge, and ensures that the whole temperature-fall period time is not less than 28 hours; Described quenching oil composed as follows: 500N bis-class base oil 85 ~ 98 parts, the polyisobutene of molecular weight 1000 ~ 3000 urge cryogen 5 ~ 8 parts, imidazoline oleate class brightener 0.1 ~ 5 part, HMW phenolic ester kind antioxidant 2 ~ 3.5 parts; The preparation method of described quenching oil is: added by base oil in reactor and be warmed up to 50 ~ 70 DEG C, then adds and urge cryogen, brightener, antioxidant, maintains the temperature at 50 ~ 70 DEG C, through stirring 1 ~ 2 hour, then filters and get final product.
Preferably, lining workpiece heat to 910 ~ 960 DEG C after described semifinishing, gas carburizing process 7 ~ 9h is carried out in insulation; And to control carburized (case) depth be 0.8 ~ 1.2mm, stove is cheated cold after being as cold as 850 ~ 900 DEG C; Then be heated to 880 DEG C ± 10 DEG C, insulation 20 ~ 50min carries out Quenching Treatment, then cools with light diesel fuel; Then be heated to 190 DEG C ± 10 DEG C, insulation 200 ~ 300min carries out temper.
Preferably, the lining workpiece heat to 930 DEG C after described semifinishing, gas carburizing process 7 ~ 9h is carried out in insulation; And to control carburized (case) depth be 0.8 ~ 1.2mm, stove is cheated cold after being as cold as 870 DEG C; Then be heated to 880 DEG C ± 10 DEG C, insulation 30min carries out Quenching Treatment, then cools with light diesel fuel; Then be heated to 190 DEG C ± 10 DEG C, insulation 240min tempering.
Preferably, described lining fine grinding processing is fixed to by lining on the special tooling on grinding machine to carry out, described special tooling comprises ring flange, an end face of described ring flange and grinding machine spindle end contact, and described ring flange is axially fixedly connected with grinding machine spindle along it;
The cylindrical end contact that the other end of described ring flange and locating piece, balancing weight form, the end face that the cylinder that described ring flange forms with locating piece, balancing weight contacts with each other is provided with the seam matched; The other end of described locating piece has the endoporus along ring flange axis; The bottom surface of described endoporus and an end contact of corrective gauge, the other end of described corrective gauge contacts with the shaft shoulder that axis calibration is arranged;
Described endoporus side contacts with the lateral surface of lining, and the lateral surface of described lining one end is provided with step, and described step end face and locating piece are away from the end contact of ring flange, and the medial surface of described lining contacts with the arc surface on corrective gauge lateral surface;
Described balancing weight, locating piece are fixedly connected with along the axis of ring flange with ring flange; One end that described axis calibration is arranging the shaft shoulder is provided with external screw thread, and described axis calibration passes the through hole that corrective gauge, locating piece are offered with externally threaded one end, and the interior formation of the screwed hole inserting ring flange relevant position is threaded.
Preferably, described balancing weight, locating piece are bolted to connection along the axis of ring flange and ring flange; Described axis calibration to form with corrective gauge, locating piece along the axis of ring flange and is threaded.
Preferably, described balancing weight is provided with counterweight screw rod away from one end of ring flange, described counterweight screw rod overlaps the counterweight nut having weight, size different.
Preferably, described axis calibration is provided with hatching knurling away from the other end sidewall of ring flange; Outside described frock, cover has cylindrical shape protective cover.
The present invention, in the oil-gas mixed delivery pump adopting screw rod transmission structure, has carried out processing technology improvement on critical component screw and bushing.Screw rod machining blanks and semifinishing when hardness is not high tentatively ensure size, and then hardening heat process improves hardness and wearability, and make it meet running wearing and tearing and corrosion requirement, then fine grinding ensures size.The advanced technologies such as plasma spraying can be adopted to ensure properties of product, again convenient processing.Another critical component unmanageable---lining adopts gradation Technology for Heating Processing, and stress residual in successive elimination processing and manufacturing process, to improve its interior tissue, improves its case hardness and corrosion resistance.And fine finishining ensures dimensional accuracy and the accuracy of form and position of part, reaches Design Requirement Drawing.When assembling on this basis, correct the axiality of lining and screw rod, meet overall performance, adapt to the severe operating condition of production wellhead.In significant prolongation equipment replacement cycle, improve service life of equipment.
Processing tool aspect, ring flange coordinates with grinding machine spindle closely, ensures frock and grinding machine spindle axiality.Excircle of bushing is enclosed within location-plate endoporus, uses corrective gauge to correct lining inner circle relative position, ensure the installation accuracy of lining and the axiality of cylindrical and inner circle.Balancing weight is set, ensures rotation center of gravity when frock and lining rotate and grinding machine spindle dead in line, improve rotational stabilization, ensure machining accuracy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the cross section view A-A of Fig. 1.
Detailed description of the invention
Adopt screw rod transmission structure, for the processing technology of the oil-gas mixed delivery pump of oil and gas multiphase flow occasion.Core be screw and bushing processing technology improve, specific embodiment such as:
Embodiment one
Screw rod procedure of processing:
1). adopt medium carbon alloy steel 38CrMoAl, first carry out modifier treatment, to improve the overall mechanical properties of screw rod;
2). on Digit Control Machine Tool, carry out roughing and semifinishing;
3). screw rod carries out correcting and Balance Treatment;
4). screw rod working surface carries out hardening heat process; Hardening heat process is that screw rod outer round surface is carried out plasma spray process; Plasma spray treatment step comprises: screw rod is preheated to 300 DEG C, then sprays WC-Co powder, remelting; Remelting temperature controls between solidus and liquidus curve; Then carry out utilizing electric furnace slow cooling process, controlled cooling model process more than 24 hours, normal temperature discharging;
5). screw rod working surface carries out fine grinding processing, makes size and positional precision reach designing requirement.
Surface of the work hardness measured value reaches HRC66.
Embodiment two
Lining procedure of processing comprises:
1). lining adopts low-carbon alloy steel 20CrMnTi, carries out roughing after forging molding;
2). then carry out modifier treatment, to improve the overall mechanical properties of lining;
3). on lathe, carry out semifinishing after modified;
4). be heated to 930 DEG C after lining semifinishing, gas carburizing process 7 ~ 9h is carried out in insulation; And to control carburized (case) depth be 0.8 ~ 1.2mm, stove is cheated cold after being as cold as 870 DEG C; Then be heated to 880 DEG C, insulation 30min carries out Quenching Treatment, then cools with light diesel fuel; Then be heated to 190 DEG C, insulation 240min tempering; Hardening media is water or quenching oil;
5). lining working surface carries out fine grinding processing, and size and positional precision all reach Design Requirement Drawing.
Surface of the work hardness measured value reaches HRC66.5.
Embodiment three
Screw rod procedure of processing:
1). adopt medium carbon alloy steel 38CrMoAl, first carry out modifier treatment, to improve the overall mechanical properties of screw rod;
2). on Digit Control Machine Tool, carry out roughing and semifinishing.
3). screw rod carries out correcting and Balance Treatment.
4). screw rod working surface carries out hardening heat process, and hardening heat process is that screw rod outer round surface is carried out plasma spray process; Plasma spray treatment step comprises: screw rod is preheated to 320 DEG C, then sprays WC-Co powder, remelting; Remelting temperature controls between solidus and liquidus curve; Then sharp slow cooling process is carried out;
5). screw rod working surface carries out fine grinding processing, makes size and positional precision reach designing requirement.
Described step 4) in slow cooling adopt quenching oil, by front 3h cooling per hour 100 DEG C, then cooling per hour 50 DEG C, after temperature arrives 300 DEG C, the cooling of the speed of cooling per hour 10 DEG C; Temperature is reduced to 150 DEG C with bottom discharge, and the whole temperature-fall period time is not less than 30 hours.
Described quenching oil consists of: 500N bis-class base oil 88 parts, the polyisobutene of low-molecular-weight 1000 ~ 3000 urge cryogen 8 parts, imidazoline oleate class brightener 1 part, HMW phenolic ester kind antioxidant 3 parts.
The preparation method of quenching oil used is comparatively conventional, is added by base oil in reactor and heats up 60 DEG C, then add and urge cryogen, brightener, antioxidant, maintain the temperature at 60 DEG C, through stirring 2 hours, more after filtration and get final product.
The screw surface hardness measured value processed reaches HRC68.
Embodiment four
Lining procedure of processing comprises:
1). lining adopts low-carbon alloy steel 20CrMnTi, carries out roughing after forging molding.
2). then carry out modifier treatment, to improve the overall mechanical properties of lining.
3). on lathe, carry out semifinishing after modified.
4). the workpiece heat to 930 DEG C after semifinishing, gas carburizing process 7 ~ 9h is carried out in insulation; And to control carburized (case) depth be 0.8 ~ 1.2mm, stove is cheated cold after being as cold as 870 DEG C; Then be heated to 880 DEG C, insulation 30min carries out Quenching Treatment, then cools with light diesel fuel; Then be heated to 200 DEG C, insulation 250min tempering;
Hardening media used is identical with the quenching oil in annealing process described in embodiment three.
5). lining working surface carries out fine grinding processing, and size and positional precision all reach Design Requirement Drawing.
The screw surface hardness measured value processed reaches HRC68.
Embodiment five
Screw rod procedure of processing:
1). adopt medium carbon alloy steel 38CrMoAl, first carry out modifier treatment, to improve the overall mechanical properties of screw rod;
2). on Digit Control Machine Tool, carry out roughing and semifinishing.
3). screw rod carries out correcting and Balance Treatment.
4). screw rod working surface carries out hardening heat process, and hardening heat process is that screw rod outer round surface is carried out plasma spray process; Plasma spray treatment step comprises: screw rod is preheated to 320 DEG C, then sprays WC-Co powder, remelting; Remelting temperature controls between solidus and liquidus curve; Then sharp slow cooling process is carried out;
5). screw rod working surface carries out fine grinding processing, makes size and positional precision reach designing requirement.
Described step 4) in slow cooling adopt quenching oil, by front 3h cooling per hour 100 DEG C, then cooling per hour 50 DEG C, after temperature arrives 300 DEG C, the cooling of the speed of cooling per hour 10 DEG C; Temperature is reduced to 150 DEG C with bottom discharge, and the whole temperature-fall period time is not less than 30 hours.
Described quenching oil consists of: 500N bis-class base oil 95 parts, the polyisobutene of low-molecular-weight 1000 ~ 3000 urge cryogen 5 parts, imidazoline oleate class brightener 3.5 parts, HMW phenolic ester kind antioxidant 2.5 parts.Preparation method is identical with embodiment three.
The screw surface hardness measured value processed reaches HRC68.
Embodiment six
Lining fine grinding processing in above-mentioned any embodiment, is preferably fixed to lining and the special tooling on grinding machine carries out.As shown in Figure 1, 2, this special tooling comprises ring flange 2, an end face of described ring flange 2 and grinding machine spindle end contact, described ring flange 2 is fixedly connected with along between its axis with grinding machine spindle 1 by the first bolt group 12, or the mode such as alignment pin, rivet also can be used to be fixedly connected with, to ensure that ring flange 2 meets the demands with the axiality of grinding machine spindle 1.
As shown in Figure 2, the cylindrical end contact that the other end of described ring flange 2 and locating piece 3, balancing weight 5 form, the end face that the cylinder that described ring flange 2 forms with locating piece 3, balancing weight 5 contacts with each other is provided with the seam 17 matched, and can facilitate locating piece 3 like this, installation between balancing weight 5 and ring flange 2 locates.Locating piece 3, balancing weight 5 monnolithic case are cylindric, fit together perfectly between the two, and coordinate counterweight to adjust, and ensure that revolution steadily.Described locating piece 3, along the axis of ring flange 2, is fixedly connected with by one or more second connecting bolt 11 with between ring flange 2.Described balancing weight 5, along the axis of ring flange 2, is fixedly connected with by one or more 3rd bolt 14 with between ring flange 2.Also the mode such as alignment pin, rivet can be used to be fixedly connected with.Rotation center of gravity when described balancing weight 5 can make frock and lining 4 rotate and the rotation axis coincident of grinding machine spindle 1, improve smooth rotation.Be more preferably: described balancing weight 5 is provided with counterweight screw rod 51 away from one end of ring flange 2, on described counterweight screw rod 1, cover has multiple counterweight nut 52, and the counterweight nut 52 that multiple weight, size are different forms one group; Just be similar to one group of counterweight of balance, can any counterweight demand of combinations matches, and facilitate counterweight to adjust.
The other end of described locating piece 3 has the endoporus along ring flange 2 axis; The bottom surface of described endoporus and an end contact of corrective gauge 13, the other end of described corrective gauge 13 contacts with the shaft shoulder that axis calibration 6 is arranged; Described axis calibration 6 is fixedly connected with along the axis of ring flange 2 with between corrective gauge 13, locating piece 3.Namely the profile of endoporus hole shape and lining 4 is coincide, for positioning adapter 4.Lining 4 shown in Fig. 2 is circular, then endoporus is also circular; If lining 4 profile is 8-shaped, then endoporus is also corresponding 8-shaped.One end that axis calibration 6 is arranging the shaft shoulder is provided with external screw thread, described axis calibration 6 passes the through hole that corrective gauge 13, locating piece 3 are offered with externally threaded one end, and insert in the screwed hole of ring flange 2 relevant position, the end face that corrective gauge 13, locating piece 3, ring flange 2 are contacted with each other is close to fixing; Also can be that keyway and key are set, axis calibration 6, corrective gauge 13, locating piece 3 are fixed connection.Described axis calibration 6 is provided with hatching knurling away from the other end sidewall of ring flange 2, is convenient to unscrew axis calibration 6.
The endoporus side of described locating piece 3 contacts with the lateral surface of lining 4, the lateral surface of described lining 4 one end is provided with step, described step end face and locating piece 3 are away from the end contact of ring flange 2, described lining 4 is fixedly connected with by the 5th bolt 15 along ring flange 2 axial direction with between locating piece 3, also the mode such as alignment pin, rivet can be used to be fixedly connected with, to ensure that lining 4 is fixed on locating piece 3.Described lining 4 is along ring flange 2 radial direction, and an inner circle side away from its center contacts with the arc surface 16 on corrective gauge 13 lateral surface.And the angle that axis calibration 6 adjusts corrective gauge 13 can be unclamped, the inner circle of the lining 4 at ring flange 2 axle center place and the axiality of grinding machine spindle 1 are met the demands, and ensures that the inner circle of lining 4 and the axiality of cylindrical meet the demands.
When using, ring flange 2 is fixedly connected with grinding machine spindle 1, locating piece 3, balancing weight 4 are fixedly connected with ring flange 2, then lining 4 put into the endoporus of locating piece 3 and be fixedly connected with it.Be arranged in the endoporus of locating piece 3 by axis calibration 6, corrective gauge 13 again, the arc surface 16 of adjustment corrective gauge 13, makes itself and lining 4 along ring flange 2 radial direction, away from an inner circle contacts side surfaces at its center.Manual rotation grinding machine spindle, observes stationarity when frock rotates, if steadily then size, the counterweight nut 62 that varies in weight not being installed on counterweight screw rod 51, and the rotational stabilization of adjustment frock.
Grinding machine spindle 1 drives frock High Rotation Speed, knife rest 8 drive high strength grinding wheel 7 along lining 4 inner circle axial, move radially, grinding is carried out to an inner circle side of lining 4.By frock clamping lining 4, process is steadily carried out, and size and the form and position tolerance of lining 4 inner circle can effectively be ensured.After processing an inner circle side of lining 4, corrective gauge 13, axis calibration 6 are taken out in the air in locating piece 3, remove lining 4 and being fixedly connected with between locating piece 3, and circumferentially being rotated 180 ° of loading locating pieces 3 along lining 4, be fixedly connected with locating piece 3 by lining 4, corrective gauge 13, axis calibration 6 load in the endoporus of locating piece 3, the arc surface 16 of adjustment corrective gauge 13, make another inner circle contacts side surfaces of itself and lining 4, namely can rotating grinding bed main shaft 1, processing is continued to lining 4.
Add man-hour, can overlap outside described frock has cylindrical shape protective cover 9, and described protective cover 9 can use aluminum alloy materials to make, and the nonmetallic materials such as PVC also can be used to make, and described protective cover 9 can effectively prevent the waste material produced in grinding process from splashing.
Claims (10)
1. a processing technology for oil-gas mixed delivery pump, comprises the step of processing screw and bushing, it is characterized in that:
Screw rod procedure of processing comprises:
1). adopt medium carbon alloy steel, first carry out modifier treatment;
2). then carry out roughing and semifinishing;
3). screw rod carries out correcting and Balance Treatment;
4). screw rod working surface carries out hardening heat process,
5). screw rod working surface carries out fine grinding processing, makes size and positional precision reach designing requirement;
Lining procedure of processing comprises:
1). lining adopts low-carbon alloy steel, carries out roughing after forging molding;
2). then carry out modifier treatment;
3). on lathe, carry out semifinishing after modified;
4). the laggard row gas carburizing of semifinishing, quenching, temper;
5). lining working surface carries out fine grinding processing, and size and positional precision all reach Design Requirement Drawing.
2. the processing technology of oil-gas mixed delivery pump according to claim 1, is characterized in that: described screw rod working surface hardening heat process is that screw rod outer round surface is carried out plasma spray process; Plasma spray treatment step comprises: screw rod is preheated to 280 ~ 350 DEG C, then sprays WC-Co powder, remelting; Remelting temperature controls between solidus and liquidus curve; Then slow cooling process is carried out.
3. the processing technology of oil-gas mixed delivery pump according to claim 2, it is characterized in that: described slow cooling is treated to employing quenching oil, by front 3h cooling per hour 100 DEG C, then cooling per hour 50 DEG C, after temperature arrives 300 DEG C, the speed cooling of cooling per hour 7 ~ 15 DEG C; Temperature is reduced to 150 DEG C with bottom discharge, and ensures that the whole temperature-fall period time is not less than 28 hours; Described quenching oil composed as follows: 500N bis-class base oil 85 ~ 98 parts, the polyisobutene of molecular weight 1000 ~ 3000 urge cryogen 5 ~ 8 parts, imidazoline oleate class brightener 0.1 ~ 5 part, HMW phenolic ester kind antioxidant 2 ~ 3.5 parts; The preparation method of described quenching oil is: added by base oil in reactor and be warmed up to 50 ~ 70 DEG C, then adds and urge cryogen, brightener, antioxidant, maintains the temperature at 50 ~ 70 DEG C, through stirring 1 ~ 2 hour, then filters and get final product.
4. the processing technology of oil-gas mixed delivery pump according to claim 2, is characterized in that: described screw rod is preheated to 300 DEG C.
5. the processing technology of oil-gas mixed delivery pump according to claim 1, is characterized in that: lining workpiece heat to 910 ~ 960 DEG C after described semifinishing, and gas carburizing process 7 ~ 9h is carried out in insulation; And to control carburized (case) depth be 0.8 ~ 1.2mm, stove is cheated cold after being as cold as 850 ~ 900 DEG C; Then be heated to 880 DEG C ± 10 DEG C, insulation 20 ~ 50min carries out Quenching Treatment, then cools with light diesel fuel; Then be heated to 190 DEG C ± 10 DEG C, insulation 200 ~ 300min carries out temper.
6. the processing technology of oil-gas mixed delivery pump according to claim 5, is characterized in that: the lining workpiece heat to 930 DEG C after described semifinishing, and gas carburizing process 7 ~ 9h is carried out in insulation; And to control carburized (case) depth be 0.8 ~ 1.2mm, stove is cheated cold after being as cold as 870 DEG C; Then be heated to 880 DEG C ± 10 DEG C, insulation 30min carries out Quenching Treatment, then cools with light diesel fuel; Then be heated to 190 DEG C ± 10 DEG C, insulation 240min tempering.
7. the processing technology of oil-gas mixed delivery pump according to claim 6, it is characterized in that: described lining fine grinding processing is fixed to by lining on the special tooling on grinding machine to carry out, described special tooling comprises ring flange (2), an end face of described ring flange (2) and grinding machine spindle end contact, described ring flange (2) is axially fixedly connected with grinding machine spindle (1) along it;
It is characterized in that: the cylindrical end contact that other end and locating piece (3), the balancing weight (5) of described ring flange (2) form, the end face that the cylinder that described ring flange (2) forms with locating piece (3), balancing weight (5) contacts with each other is provided with the seam (17) matched; The other end of described locating piece (3) has along the axial endoporus of ring flange (2); One end contact of the bottom surface of described endoporus and corrective gauge (13), the other end of described corrective gauge (13) contacts with the upper shaft shoulder arranged of axis calibration (6);
Described endoporus side contacts with the lateral surface of lining (4), the lateral surface of described lining (4) one end is provided with step, described step end face and locating piece (3) are away from the end contact of ring flange (2), and the medial surface of described lining (4) contacts with the arc surface (16) on corrective gauge (13) lateral surface;
Described balancing weight (5), locating piece (3) are fixedly connected with along the axis of ring flange (2) with ring flange (2); Described axis calibration (6) is fixedly connected with along the axis of ring flange (2) with corrective gauge (13), locating piece (3).
8. a kind of oil and gas multiphase flow pump bushing internal grinding frock according to claim 7, is characterized in that: described balancing weight (5), locating piece (3) are bolted to connection along the axis of ring flange (2) and ring flange (2); Described axis calibration one end that (6) are arranging the shaft shoulder is provided with external screw thread, described axis calibration (6) passes the through hole that corrective gauge (13), locating piece (3) are offered with externally threaded one end, and the interior formation of the screwed hole inserting ring flange (2) relevant position is threaded.
9. a kind of oil and gas multiphase flow pump bushing internal grinding frock according to claim 8, it is characterized in that: described balancing weight (5) is provided with counterweight screw rod (51) away from one end of ring flange (2), described counterweight screw rod (51) above overlaps the counterweight nut (52) having weight, size different.
10. a kind of oil and gas multiphase flow pump bushing internal grinding frock according to claim 1, is characterized in that: described axis calibration (6) is provided with hatching knurling away from the other end sidewall of ring flange (2); Outside described frock, cover has cylindrical shape protective cover (9).
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| CN201510607368.9A CN105171351B (en) | 2015-09-22 | 2015-09-22 | The processing technology of oil-gas mixed delivery pump |
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| CN105821187A (en) * | 2016-04-28 | 2016-08-03 | 昌利锻造有限公司 | Low-volatility quenching oil |
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Denomination of invention: Machining process for oil-gas transport pump Effective date of registration: 20190624 Granted publication date: 20171226 Pledgee: Mount Huangshan Tunxi rural commercial bank Limited by Share Ltd. Xin Tan sub branch Pledgor: HUANGSHAN ZONTO PUMPS MANUFACTURING Co.,Ltd. Registration number: 2019340000329 |
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Denomination of invention: Processing technology of oil-gas pump Effective date of registration: 20220713 Granted publication date: 20171226 Pledgee: Mount Huangshan Tunxi rural commercial bank Limited by Share Ltd. Xin Tan sub branch Pledgor: HUANGSHAN ZONTO PUMPS MANUFACTURING Co.,Ltd. Registration number: Y2022980010376 |
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Denomination of invention: The processing technology of oil and gas mixed transport pump Effective date of registration: 20231225 Granted publication date: 20171226 Pledgee: Huishang Bank Co.,Ltd. Mount Huangshan Tunxi Yanghu Sub branch Pledgor: HUANGSHAN ZONTO PUMPS MANUFACTURING Co.,Ltd. Registration number: Y2023980074060 |
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